How do you store your sim

[MagdalenLaundry]

Ok you were all right.
I am camping and sleeping well on my outwell dreamcatcher
Warm. DD and DH have had their aerobeds go down and they are cold
I've just heard bad things about how long they last and that the air things (I can't remember the name of them ) stop working
Some say store flat with them open

After a camping trip we leave ours inflated in the living room overnight, to make sure they're bone-dry. Then they go up into the loft, where we store them upright with the valves open. They usually lean on those joists (?) that hold the roof up, the Ines arranged in a V-shape, so they take up no space at all.

They need to be stored unrolled and with the valve open if possible, mine live in the roof space.

We do the opposite - rolled in bags with valves closed. DH's first SIM is still going strong and it is a 30 odd years old therm a rest.

Our cheap Aldi ones are stored rolled and still work fine many years on. I think though that if we had the expensive fat ones I too would store them flat in the loft.